CVE-2022-2764

Undertow: DoS can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations

Severity Score

4.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in Undertow. Denial of service can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations.

Se ha encontrado un fallo en Undertow. Puede producirse una denegación de servicio ya que el servidor de Undertow espera eternamente el LAST_CHUNK para las invocaciones EJB

A flaw was found in Undertow with EJB invocations. This flaw allows an attacker to generate a valid HTTP request and send it to the server on an established connection after removing the LAST_CHUNK from the bytes, causing a denial of service.

Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.6.2 serves as a replacement for Red Hat Single Sign-On 7.6.1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include code execution, cross site scripting, denial of service, deserialization, html injection, memory exhaustion, open redirection, server-side request forgery, and traversal vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Multiple

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-08-11 CVE Reserved
2022-09-01 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (3)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20221014-0006	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2117506	2022-11-07
https://access.redhat.com/security/cve/CVE-2022-2764	2023-03-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Integration Camel K Search vendor "Redhat" for product "Integration Camel K"				-		-		Affected
Redhat Search vendor "Redhat"		Jboss Enterprise Application Platform Search vendor "Redhat" for product "Jboss Enterprise Application Platform"				7.0.0 Search vendor "Redhat" for product "Jboss Enterprise Application Platform" and version "7.0.0"		-		Affected
Redhat Search vendor "Redhat"		Jboss Fuse Search vendor "Redhat" for product "Jboss Fuse"				7.0.0 Search vendor "Redhat" for product "Jboss Fuse" and version "7.0.0"		-		Affected
Redhat Search vendor "Redhat"		Single Sign-on Search vendor "Redhat" for product "Single Sign-on"				7.0 Search vendor "Redhat" for product "Single Sign-on" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Undertow Search vendor "Redhat" for product "Undertow"				>= 2.0.0 <= 2.2.19 Search vendor "Redhat" for product "Undertow" and version " >= 2.0.0 <= 2.2.19"		-		Affected
Redhat Search vendor "Redhat"		Undertow Search vendor "Redhat" for product "Undertow"				2.3.0 Search vendor "Redhat" for product "Undertow" and version "2.3.0"		alpha1		Affected
Redhat Search vendor "Redhat"		Undertow Search vendor "Redhat" for product "Undertow"				2.3.0 Search vendor "Redhat" for product "Undertow" and version "2.3.0"		alpha2		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		linux		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		vmware_vsphere		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		windows		Affected
Netapp Search vendor "Netapp"		Cloud Secure Agent Search vendor "Netapp" for product "Cloud Secure Agent"				-		-		Affected
Netapp Search vendor "Netapp"		Oncommand Insight Search vendor "Netapp" for product "Oncommand Insight"				-		-		Affected
Netapp Search vendor "Netapp"		Oncommand Workflow Automation Search vendor "Netapp" for product "Oncommand Workflow Automation"				-		-		Affected